怎样让Button文字居中，以及让Button在父容器中居中
\u5728android\u4e2d\u5982\u4f55\u8ba9\u5e03\u5c40\u5c45\u4e2d\u4e24\u79cd\u65b9\u6cd5\uff1a
\u56fe\u5f62\u5316\u8bbe\u8ba1\u754c\u9762\u4e2d\uff1a\u9009\u4e2d\u8981\u5c45\u4e2d\u7684\u7ec4\u4ef6\u3002\u5728\u53f3\u8fb9\u7684\u201c\u5c5e\u6027\u680f\u201d\uff08\u524d\u63d0\u662f\u4f60\u6ca1\u6709\u628a\u5b83\u9690\u85cf\u6389\uff09\u4e2d\u7684Gravity\u4e00\u680f\u9009\u62e9center_vertical\u6216\u8005center_horizontal\u6216\u8005center\u3002\u5206\u522b\u8868\u793a\u5728\u7236\u5e03\u5c40\u4e2d\u5782\u76f4\u5c45\u4e2d\u3001\u6c34\u5e73\u5c45\u4e2d\u3001\u4e2d\u5fc3\u3002
xml\u4ee3\u7801\u754c\u9762\u5f53\u4e2d\uff1a android:layout_gravity="center_vertical\u6216center_horizontal\u6216center"
\u4f60\u597d\uff0c\u6211\u6309\u7167\u4f60\u7684\u8981\u6c42\u5199\u4e86\u4e00\u4e2a\u4f8b\u5b50\uff0c\u8bf7\u53c2\u8003
\u6309\u94aebutton{ height:50px; /*\u7ed9\u6309\u94ae\u8bbe\u5b9a\u4e00\u4e2a\u9ad8\u5ea6\uff0c\u4ee5\u65b9\u4fbf\u89c2\u5bdf*/ line-height:70px; /*\u52a0\u5927\u6309\u94ae\u4e2d\u7684\u6587\u5b57\u7684\u884c\u9ad8*/ vertical-align:bottom;} /*\u6587\u5b57\u5e95\u90e8\u5bf9\u9f50(\u9ed8\u8ba4\u662f\u5c45\u4e2d\u5bf9\u9f50)*/
或者设置父view的gravity属性值
绛旓細Button涓婄殑android:drawableLeft璁剧疆鐨勫浘鐗囧氨鏄眳宸︼紝鏃犳硶鍜屾枃瀛椾竴璧灞呬腑锛屾枃瀛灞炴у彲浠ラ氳繃android:layout_gravity璁剧疆灞呬腑锛屾兂瑕乤ndroid:drawableLeft璁剧疆鐨勫浘鐗囧眳涓紝鍙互閫氳繃鍙﹀鐨勬柟娉曟潵瀹炵幇锛屽缓璁細涓ゅ紶鍥剧墖鍚堜簩涓轰竴锛宎ndroid:drawableLeft璁剧疆鐨勫浘鐗囩洿鎺ュ拰鎸夐挳鑳屾櫙鍥惧悎鍒颁竴寮犲浘鐗囦笂锛宎ndroid:drawableLeft璁剧疆...
绛旓細璁剧疆button鐨height鍜宭ine-height鐨勯珮搴︾浉鍚屽氨琛屼簡 .btn{ height:30px;line-height:30px;} <input type="button"calss="btn" />
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绛旓細鑳藉惁璇磋缁嗕竴鐐瑰憿锛屾槸璁╁崟涓button 杩樻槸鎵鏈夛紵濡傛灉鏄崟绾殑灞呬腑鍙互 璁剧疆 position锛歛bsolute锛 margin锛0 auto锛
绛旓細android :gravity="center_horizontal"鏀逛负android :gravity="center_horizontal | center_vertical"
